单词	acetylene black
释义	acetylene black noun : a carbon black characterized by relatively high electrical conductivity, made by decomposing acetylene (as by pyrolysis in a retort or by explosion), and used chiefly as a filler in dry cells, rubber, and plastics Word History First Known Use 1898, in the meaning defined above
随便看	rareliest rarely rarely ever rarely if ever rarely/seldom ever rarely/seldom if ever rareness rarenesses rarer rareripe rareripes rares rarest rarified rarifies rarify rarifying rariness raring rariora rarish Raritan rarities rarity Raroian

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